6
15
Maintenance and Inspection
Daily and Yearly Inspection Chart
Item Inspected
Check for…
Inspection
Cycle
Inspection
Method
Criteria
Daily Year
Overall
Ambient
environment
Extreme
temperatures &
humidity
Thermometer,
hygrometer
Ambient temperature
between –10 to 50
C,
Humidity 90% or less
non-condensing
Major
devices
Abnormal noise &
vib.
Visual and aural
Stable environment for
electronic controls
Power
supply
voltage
Voltage tolerance
Digital volt meter,
measure between
inverter terminals
[L1], [L2], [L3]
200V class: 50/60 Hz
200 to 240V (-15/+10%)
400V class: 50/60 Hz
380 to 460V (-15/+10%)
Main
circuit
Ground
Insulation
Adequate
resistance
Refer to P6-16
5 M
or greater
Mounting
No loose screws
Torque wrench
M3.5: 1.0Nm
M4: 1.4Nm
M5: 3.0
M6: 3.9 to 5.1Nm
M8: 5.9 to 8.8Nm
Components Overheating
Thermal trip
events
No trip events
IGBT
Resistance value
Refer to P6-17
Terminal
block
Secure connections
Visual
No abnormalities
Smoothing
capacitors
Leaking, swelling
Visual
No abnormalities
Relay(s)
Chattering
Aural
Single click when
switching ON or OFF
Resistors
Cracks or
discoloring
Visual
Check Ohms of optional
braking res.
Control
circuit
Function
Voltage balance
between phases
Measure voltage
between U,V,W
Difference must be 2%
or less.
Protection circuit
e.g. Input Ex.trip
signal and check
inverter behavior
and alarm signal.
Functions properly.
Overall
No odor,
discoloring,
corrosion
Visual
No abnormalities
Capacitor
Leaking, swelling
Visual
Undistorted appearance
Cooling
Cooling fan Noise
Power down,
manually rotate
Rotation must be
smooth
Dust
Visual
Vacuum to clean
Mounting
Visual
Mounted firmly
Heat sink
Dust
Visual
Vacuum to clean
Display LEDs
Legibility
Visual
All LED segments work
Note 1:
The life of a capacitor is affected by the ambient temperature. See page 6–21.
Note 2:
Designed life of a cooling fan is.10 years. However, it is affected by the ambient
temperature and other environmental conditions.
Note 3:
The inverter must be cleaned periodically. If dust accumulates on the fan and
heat sink, it can cause overheating of the inverter.
Summary of Contents for WJ200-001L
Page 2: ......
Page 3: ......
Page 49: ......
Page 299: ......
Page 300: ...5 1 Inverter System Accessories In This Chapter page Introduction 2 Component Description 3 5 ...
Page 305: ......
Page 328: ...A 1 Glossary and Bibliography In This Appendix page Glossary 2 Bibliography 8 A ...
Page 387: ......
Page 509: ......
Page 665: ......
Page 673: ......